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I also have the same problem.

I want to do the Signal Processing on the Audio input stream, and it works fine on Chrome (Preview window), but neither on Gear 2 device nor emulator.

I even searched the web and tried every single possible solution that I found.

Hello,

May be this article help you:

http://stackoverflow.com/questions/20602720/javascript-audio-api-onaudioprocess-not-fired

Here is my code:

audioContext = window.AudioContext || window.webkitAudioContext;
        context = new audioContext();

        timeData = [];
        fft = new FFT(MY_FFT_SIZE, SAMPLE_RATE);
        
        procNode = context.createJavaScriptNode(BUFFER_LEN, 1, 1);
        
        procNode.onaudioprocess = window.audioProcess = function(e) {
            console.log('gotStream audioProcess');
            timeData = e.inputBuffer.getChannelData(0);
            if (recording) {
                leftChannel.push(new Float32Array(timeData));
                rightChannel.push(new Float32Array(timeData));
                recordingLength += BUFFER_LEN;
            }
        }
        
        inputHardware = context.createMediaStreamSource(stream);
        procNode.connect(context.destination);